臺灣博碩士論文加值系統

本篇研究將介紹並使用噴墨列印技術中大規模使用與研究的壓電式噴墨技術，使用奈米金(AuNP) 10~15nm溶液作為噴墨的油墨使用，來觀察奈米金(AuNP)的特性來研製光電元件。壓電式噴墨印刷的主要技術優點是可以噴墨大尺寸而均勻的面積及快速定義圖型，擁有高分辨率功能和較快的成膜製程速度，並可調整參數及電壓達到更精確的噴墨，降低材料的損耗。
　　在使用墨滴為奈米金(AuNP) 10~15nm溶液運用在壓電式噴墨技術，將ITO表面做表面改質處理，在不同的鹽酸溶液的比例下去做浸泡，浸泡後使其ITO薄膜電極與奈米金(AuNP)溶液的接觸角能呈現在親水性表面(10°<θ<80°)，在噴墨印刷時，讓墨滴奈米金(AuNP)能均勻擴散，使墨滴間能重疊。
　　使用奈米金（AuNP）的噴墨印刷可應用於OLED光電子器件的基本結構中。首先，可以將奈米金（AuNP）直接噴墨印刷到表面改質過的ITO玻璃基材上。然後通過使用熱蒸發系統進一步製備綠色OLED的傳統結構。進行測量和分析相關的光電特性。由於奈米金(AuNP)溶液粒徑在小於100nm時色澤為酒紅色，但對金奈米球體而言表面電漿共振吸收波長依尺寸大小(10~25nm)的不同分布在波段510−535 nm 間；有文獻紀載奈米金(AuNP)粒徑約為5~25nm工作電位在HOMO 5.1~5.2ev，而ITO薄膜電極工作電位在HOMO 4.7~4.8ev。因此，奈米金（AuNP）可以作為良好的電洞注入層（HIL），或者使用奈米金(AuNP)特性來調變ITO HOMO的能階特性。

The inkjet printing technology, for large-scale use of piezoelectric jet technology and research, will be introduced in this study. There are several main technical advantages, which consist of the ability to get big size and uniform area, quickly define figure type, have high resolution capabilities, and faster film-forming process speed, for the piezoelectric type inkjet printing technology. In addition, the adjustable parameters and voltage can achieve more accurate ink jet and also reduce the loss of material. We can use its advantages to discover this study.
　　In the study of quickly define figure type, which can be used in the place of Photolithography, the ink droplets of Au nanoparticles (AuNP) 10~15nm solution are utilized in this study and the ITO surface are adjusted by the use of surface modification treatment. The ITO glass substrates are immersed and soaked in the hydrochloric acid solutions with different proportions, so that the suface contact angle between ITO thin-film electrodes and AuNP ink droplets can be improved to demonstrate the hydrophilic surface (10° < θ < 80°). In the inkjet printing process, AuNP ink droplets can be uniformly diffused, so that the ink droplets can overlap.
　　The inkjet printing with the use of Au nanoparticles (AuNP) 10~15nm can be applied in the basic structure of the OLED optoelectronic devices. First, the Au nanoparticles (AuNP) can be inkjet printed directly onto the surface-modified ITO glass substrates. Then a conventional structure of green OLED can be further prepared by using thermal evaporation system. The related optoelectronic characteristics can be measured and analysed. Due to the fact that the particle size of the used Au nanoparticles (AuNP) solution is less than 100nm, it exhibit wine red. However, the surface plasma resonance absorption wavelength of the gold nano-spheres are distributed in the range of 510−535nm according to the different sizes (10 to 25nm). In the literature, the working potential of Au nanoparticles (AuNP) with the particle size of approximate 5~25nm is in the HOMO of 5.1 to 5.2 eV, while the working potential of the ITO thin film electrode is in HOMO of 4.7~4.8 eV. Therefore, the Au nanoparticles (AuNP) can be served as a good hole injection layer (HIL), or the HOMO energy level character of ITO with the use of the Au nanoparticles (AuNP) can be also modified.

目錄
第一章 緒論
1-1前言....................1
1-2研究背景................3
1-3研究動機與目的...........4
1-4論文的架構...............5
1-5實驗規劃流程圖...........6
第二章 製程材料與儀器介紹
2-1奈米發展與歷史...........8
2-1-1奈米材料...............9
2-1-2奈米材料製程..........12
2-1-3 奈米材料特質(AuNP)....15
2-2噴墨技術.................17
2-3 DMP-2800壓電式噴墨系統...21
2-3-1機器規格介紹..........21
2-3-2機台介面設定.........22
2-3-3打印墨盒介紹 ........24
2-4 接觸角分析............29
2-5電性分析...............31
2-5-1片電阻(Sheet resistance)....31
2-5-2表面電阻(surface resistance) (Ω/cm2)....32
第三章 實驗製備與流程
3-1 實驗流程...................53
3-1-1 ITO表面改質..............53
3-1-2 表面改質後噴墨............54
3-2元件製作....................56
第四章 結果與討論
4-1表面改質後的ITO..............61
4-2改質後噴墨奈米金.............63
4-3改質後噴奈米金製程OLED元件....64
第五章 結論
參考文獻........................81

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